Static structures (e.g. – buildings) – Sectioned imperforate facing within perpheral frame; e.g.,...
Reexamination Certificate
2007-02-21
2010-11-16
Glessner, Brian E (Department: 3633)
Static structures (e.g., buildings)
Sectioned imperforate facing within perpheral frame; e.g.,...
C052S232000, C052S783130, C052S784110
Reexamination Certificate
active
07832166
ABSTRACT:
The present invention provides a system, method and apparatus for producing fire rated doors having added strength, better finishing and low cost manufacturing flexibility. The fire rated doors are made from two panels “sandwiched” together. An optional interior layer (e.g., fire resistant material, lead sheeting, steel or Kevlar) can be added between the door panels for various purposes. Splines, stiles or sticks are inserted in longitudinal channels in the door panels to provide assistance in aligning the door panels and greater hardware holding strength. An intumescent banding material concealed by a banding material around the perimeter of the door seals the door within its frame during a fire. The door design and the automated manufacturing process provide greater design choice, reduced cost and faster fabrication.
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International Search Report and Written Opinion for PCT/US2007/004605 dated Oct. 4, 2007.
Chalker Daniel J.
Chalker Flores LLP
Flores Edwin S.
Glessner Brian E
Maestri Patrick
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